8427742253 has 4 divisors (see below), whose sum is σ = 9631705440. Its totient is φ = 7223779068.

The previous prime is 8427742241. The next prime is 8427742283. The reversal of 8427742253 is 3522477248.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8427742253 - 2⁶ = 8427742189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8427742283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601981583 + ... + 601981596.

It is an arithmetic number, because the mean of its divisors is an integer number (2407926360).

Almost surely, 2^8427742253 is an apocalyptic number.

It is an amenable number.

8427742253 is a deficient number, since it is larger than the sum of its proper divisors (1203963187).

8427742253 is a wasteful number, since it uses less digits than its factorization.

8427742253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203963186.

The product of its digits is 752640, while the sum is 44.

The square root of 8427742253 is about 91802.7355420306. The cubic root of 8427742253 is about 2035.0281215640.

The spelling of 8427742253 in words is "eight billion, four hundred twenty-seven million, seven hundred forty-two thousand, two hundred fifty-three".